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William Hardy — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Ellis-County, Oklahoma
Our Model Tree links this William Hardy across the 1920, 1930 and 1940 US Censuses in Ellis-County, Oklahoma (XGBoost, ~Confirmed) — first a head (b.~1875), then head of a 4-person household.
Age 65
b. ~1875
Male
Head
Born: Iowa
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Ellis-County, Oklahoma |
| Surname | Hardy |
| Given Name | William H. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 65 |
| Marital Status | Married |
| Birthplace | Iowa |
| 1935 Residence (City) | Jefferson Township |
| 1935 Residence (County) | Ellis |
| Additional Details | |
| Occupation | Farmer |
| Industry | Own Farm |
| Class of Worker | OA |
| Hours Worked | 48 |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same house |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Occupation | Farmer |
| Township / Ward | Jefferson Township |
| Est. Birth Year | ~1875 |
Household Members
Census records only state relationship to the household head.
Pairwise kinship is derived (~90–95% accurate), not recorded.
Step/blended families and boarders can break it.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to William | Age | Birth yr |
|---|---|---|---|---|
| Mary Hardy | Spouse | — | 60 | ~1880 |
| Earl Hardy | Son | — | 22 | ~1918 |
| Henry Simpson | Other | — | 23 | ~1917 |
| William Hardy | Head | — | 65 | ~1875 |
Census Appearances
1920
Ellis, Oklahoma
Head, age 43
Ellis, Oklahoma · implied b. ~1877 — 12 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hardy |
| Given Name | William L. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 43 |
| Marital Status | Married |
| Birthplace | Iowa |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Virginia |
| Occupation | Farmer |
| Industry | Gen farm |
| Class of Worker | Em |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Home Owned/Rented | O |
| Home Free/Mortgaged | M |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1930
Ellis, Oklahoma
Head, age 55
Ellis, Oklahoma · implied b. ~1875 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hardy |
| Given Name | William T |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 55 |
| Marital Status | Married |
| Birthplace | Iowa |
| Age at First Marriage | 21 |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Virginia |
| Occupation | Farmer |
| Industry | General Farm |
| Class of Worker | VVVV E |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Ellis-County, Oklahoma
Head, age 65
Ellis-County, Oklahoma · implied b. ~1875 — 4 household members
| Surname | Hardy |
| Given Name | William H. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 65 |
| Marital Status | Married |
| Birthplace | Iowa |
| 1935 Residence (City) | Jefferson Township |
| 1935 Residence (County) | Ellis |
| Occupation | Farmer |
| Industry | Own Farm |
| Class of Worker | OA |
| Hours Worked | 48 |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same house |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
Model Tree
An inferred pedigree reconstructed from census links — up to 4 generations within the 1900–1950 window. Closer generations are built from household co-residence; deeper ones are bridged by following a relative to their own childhood census. Confidence compounds and weakens with each generation.
Our Model Tree links William Hardy across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
William Hardy
Head · 1940 · age 65 · b. ~1875 · Oklahoma
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Ellis-County, Oklahoma
Open full size
1940 US Federal Census — Ellis-County, Oklahoma
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03291-00525)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Coralie Hahn | 3 | — | — | Alabama |
| 42 | Betty Lou Hahn | 0 | — | — | Oklahoma |
| 43 | William H. Hardy THIS PERSON | 65 | Head | Farmer | Iowa |
| 44 | Mary E. Hardy | 60 | Wife | — | Missouri |
| 45 | Earl Hardy | 22 | Son | Farm Laborer | Oklahoma |
| 46 | Henry Simpson | 23 | Hired hand | Farm Laborer | Oklahoma |
| 47 | Carl W. Yandell | 47 | Head | Farmer | Penn. |
| 48 | May M. Yandell | 43 | Wife | — | Iowa |
| 49 | Charles Yandell | 13 | Son | — | Oklahoma |
| 50 | Roscoe Yandell | 10 | Son | — | Oklahoma |
| 51 | John W. Cutz | 78 | Father | — | Pennsylvania |
| 52 | Mary E. Cutz | 83 | Mother | — | Pennsylvania |
| 53 | Haby J. Kaster | 38 | Head | Farmer | Kansas |
| 54 | Bertha Kaster | 39 | Wife | — | Oklahoma |
| 55 | Bill Addison | 26 | Head | Farmer | Texas |
| 56 | Sarah Addison | 24 | Wife | — | Oklahoma |
| 57 | Larry Wayne Addison | 1 | Son | — | Oklahoma |
| 58 | Alfred B. Vogt | 44 | Head | Farmer | Texas |
| 59 | Frieda S. Vogt | 42 | Wife | — | Kansas |
| 60 | Arlean L. Vogt | 19 | Daughter | — | Oklahoma |
| 61 | Henry Jones | 38 | Head | Farmer | Canada |
| 62 | Hannah Jones | 33 | Wife | — | Oklahoma |
| 63 | Juanita Jones | 8 | Daughter | — | Texas |
| 64 | Bettie Jones | 4 | Daughter | — | Oklahoma |
| 65 | Fred Riggs | 57 | Head | Farmer | Nebraska |
| 66 | Leona Riggs | 63 | Sister | Farmer | Nebraska |
| 67 | Willie Putnam | 38 | Head | Farmer | Texas |
| 68 | Rose Putnam | 38 | Wife | Farm Laborer | Kansas |
| 69 | Junior Putnam | 19 | Son | Farm Laborer | Oklahoma |
| 70 | Ella Putnam | 18 | Daughter | — | Oklahoma |
| 71 | Naomi Putnam | 16 | Daughter | — | Oklahoma |
| 72 | Edward F. Riggs | 64 | Head | Farmer | Nebraska |
| 73 | Bessie Riggs | 45 | Wife | — | Nebraska |
| 74 | John F. Riffel | 65 | Head | Farmer | Russia |
| 75 | Sadie Riffel | 62 | Wife | — | Kansas |
| 76 | Loyd Riffel | 26 | Son | Farm Laborer | Oklahoma |
| 77 | William E. Riffel | 37 | Head | Farmer | Kansas |
| 78 | Lela Riffel | 30 | Wife | — | Oklahoma |
| 79 | Wyvonne Riffel | 7 | Daughter | — | Oklahoma |
| 80 | Barbara Riffel | 3 | Daughter | — | Oklahoma |
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1940 United States Federal Census (NARA). Our Model Tree links this person across census decades using XGBoost-based record linkage, with per-link confidence scores. Household corroboration strengthens the signal when co-residents appear on the same census pages in multiple years.
Source: National Archives and Records Administration (NARA)